:root{
  --bg:#0b0c10;
  --card:#111319;
  --muted:#9aa3b2;
  --text:#f5f7fa;
  --gold:#f2c94c;
  --gold-2:#ffc94c;
  --line:#1f2230;
  --accent:#2d3648;
  --focus:#6aa9ff;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial; color:var(--text); background:linear-gradient(180deg,#0a0b0f 0%, #08090c 100%);
}
.app-header{
  display:flex; justify-content:space-between; align-items:center; padding:12px 20px; border-bottom:1px solid var(--line); position:sticky; top:0; background:rgba(8,9,12,.8); backdrop-filter:saturate(1.2) blur(6px);
}
.brand{display:flex; align-items:center; gap:12px}
.logo{width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--gold);border-radius:8px;color:var(--gold);font-weight:700}
.title-group h1{margin:0; font-size:18px;letter-spacing:.02em}
.title-group p{margin:0;color:var(--muted);font-size:12px}
.toolbar{display:flex;gap:8px}
.btn{background:linear-gradient(180deg,var(--gold),var(--gold-2));color:#000;border:0;border-radius:8px;padding:8px 12px;font-weight:700;cursor:pointer}
.btn:focus{outline:2px solid var(--focus);outline-offset:2px}
.btn:disabled{opacity:.5;cursor:not-allowed}

.app-main{display:grid; grid-template-columns:320px 1fr; gap:16px; padding:16px;}
.sidebar{display:flex;flex-direction:column;gap:16px}
.card{background:rgba(17,19,25,.7); border:1px solid var(--line); border-radius:14px; padding:14px; box-shadow: 0 1px 0 #000, inset 0 1px 0 rgba(255,255,255,.02)}
.card-title{margin:0 0 8px 0}
.card-header{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.spacer{flex:1}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:10px}
.field.compact{flex-direction:row;align-items:center;gap:8px}
label{font-size:12px;color:var(--muted)}
input,select{background:#0e1017;border:1px solid var(--accent);border-radius:8px;color:var(--text);padding:8px}
input:focus,select:focus{outline:2px solid var(--focus);outline-offset:2px}
.list{list-style:none;margin:0;padding:0;max-height:45vh;overflow:auto;border:1px solid var(--line);border-radius:10px}
.list li{padding:10px 12px;border-bottom:1px solid var(--line);cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.list li:last-child{border-bottom:0}
.list li.active{background:#121624; border-left:3px solid var(--gold)}
.badge{font-size:11px;color:#000;background:var(--gold);padding:2px 8px;border-radius:999px}

.tabs{display:flex;gap:8px;margin-bottom:8px}
.tab{background:transparent;border:1px solid var(--accent);color:var(--text);border-radius:999px;padding:8px 12px;cursor:pointer}
.tab.active{border-color:var(--gold);color:var(--gold)}
.tab-panel{display:none}
.tab-panel.active{display:block}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

.kv{display:grid;grid-template-columns:1.2fr .8fr;gap:6px;align-items:center}
.kv .row{display:contents}
.kv .row label{justify-self:start}
.kv input{justify-self:end;width:100%}

.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}
.metric{background:#0d0f15;border:1px solid var(--line);border-radius:10px;padding:10px}
.metric .label{color:var(--muted);font-size:12px}
.metric .value{font-weight:800;font-size:18px}
.metric.highlight{border-color:var(--gold)}

.scenario{border-top:1px dashed var(--line);padding-top:12px;margin-top:12px}
.scenario-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:8px}

.summary{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.summary .block{background:#0d0f15;border:1px solid var(--line);border-radius:10px;padding:10px}
.summary .block h4{margin:0 0 8px 0}

 

.actions{display:flex;gap:8px;justify-content:flex-end;margin-top:10px}
.muted{color:var(--muted)}

/* FAQ styling */
.faq{margin:16px;}
.faq .faq-list{display:flex;flex-direction:column;gap:8px}
.faq details{background:#0d0f15;border:1px solid var(--line);border-radius:10px;padding:10px}
.faq summary{cursor:pointer;font-weight:600}
.faq p{margin:.5em 0 0 0; color:var(--muted)}

#toast{position:fixed;bottom:16px;right:16px;background:#121826;border:1px solid var(--line);color:var(--text);padding:10px 12px;border-radius:10px;opacity:0;transform:translateY(10px);transition:all .25s}
#toast.show{opacity:1;transform:none}

@media (max-width: 980px){
  .app-main{grid-template-columns:1fr; padding:12px}
  .grid-2{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .summary{grid-template-columns:1fr}
  .scenario-metrics{grid-template-columns:1fr 1fr}
  .toolbar{flex-wrap:wrap}
}

@media (max-width: 680px){
  .app-header{padding:10px 12px}
  .title-group h1{font-size:16px}
  .title-group p{font-size:11px}
  .app-main{gap:12px; padding:10px}
  .card{padding:12px}
  .tabs{overflow-x:auto; -webkit-overflow-scrolling:touch; white-space:nowrap}
  .tab{flex:0 0 auto}
  .grid-3{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .scenario-metrics{grid-template-columns:1fr}
  .list{max-height:40vh}
  .toolbar{gap:6px}
  .toolbar .btn, .toolbar a.btn{flex:1 1 160px}
}

@media (max-width: 520px){
  .app-main{padding:8px}
  .card{padding:10px}
  .tabs{gap:6px}
  .metric .value{font-size:16px}
}